Tricon Engineering Group, Ltd Engineers Tricon Engineering Group, Ltd 1505 44th St SW Wyoming, MI 49509 (616) 261-8630 (616) 261-8631 (fax) Rep Info Whom to Contact Guy Nelson Engineer Phone: (616) 261-8630 Fax: (616) 261-8631 Send an Email Todd Stelma Engineer Phone: (616) 261-8630 Fax: (616) 261-8631